MoTeC M4

The M4 is our 4 cylinder/rotary Engine Management System (ECU) designed to provide you with the power and quality of our Pro series but at lower cost by letting you option in only the features you require. It is designed primarily for performance street cars & bikes but by choosing the optional features it is perfect for competition use, especially its sequential injection capability.

The M4 can control up to 12 cylinders and uses 3 dimensional mapping of engine speed against throttle or manifold pressure for improved accuracy. Ignition control gives you the ability to drive your ignition modules and set your spark timing to be at its absolute best at all points. Sequential injection lets you fire the injectors at the optimum time in the engine cycle and to adjust this for different engine RPM’s. Advanced tuning gives many extra features including traction control, the ability to configure the ECU to your existing sensors, more load & speed sites and many other features. 512Kb of on board data logging is an option that lets you analyse the engine as it has been running. Configure the system to suit your needs and if you need more options later they can be enabled at that time. The M4 Clubman combines 3D mapping, sequential injection and ignition control into a package useful for the Club level enthusiast.

All M4 models have the accurate control necessary to meet legislated emissions requirements, including closed loop narrow band lambda control. The engine must, of course, be emissions capable.

The M4 can use nearly all original equipment and aftermarket ignition triggers, modules and coils, giving it unmatched flexibility. This avoids the cost and time needed to re-manufacture the distributor in order to trigger ECUs which are not as advanced as the MoTeC system. The M4 can be triggered by either a hall effect switch, a logic drive or a magnetic sensor, with various signal types and with intelligent signal filtering insuring proper signal to noise ratio at any crank speed. Electromagnetic interference can play havoc with electronic devices, and MoTeC take extensive preventive measures to reject low impedance conducted interference and to shield from radiated interference.

The heart of the M4 is a Motorola 32 bit microcontroller with a time co-processor, a choice which puts it at the leading edge of automotive control systems. Contained in a 132 pin surface mount package and consisting of over 420,000 transistors the M4 is built to internationally recognised quality control standards (ISO 9001). That the M4 reads its sensors 2400 times per second, and the entire control program is recalculated 200 times per second demonstrates its power. In personal computer terms the last PC to use a 16 bit processor was the ‘286’ released in the early 1980’s whereas 32 bit is still current technology. We were the first and to our knowledge the only people to have used this processor in this application.

MoTeC’s unique software programmable switch mode drivers can trigger any injector with up to 70% less power usage than other products, drawing less power from the electrical system and generating less heat inside the ECU. Comprehensive diagnostics report on injector current usage and any wiring open/short circuit after each firing of the injector.

There is a comprehensive group of computer software tools available for the M4, including

* Engine setup, tuning diagnostics and utilities.
* Monitoring, data logging and analysis.
* Utilities for loading new program code and enabling special features.

This software has been designed with the emphasis on useability, enabling you to quickly optimise the setup for your vehicle. Alternatively most of the basic tuning parameters can be accessed by the use of a hand held calibrator.

Other thoughtful M4 features include the use of programmable flash memory chip to store the control program. This means that there is no program chip or EPROM to change to upgrade the program. When a new program feature is offered you simply send the M4 the new code over the optional MoTeC connector cable and the latest features are available to you. Flash memory has also been included for the internal data logging, meaning that the recorded data will never be lost even if power to the ECU is removed. Flash storage also enables the M4 to retain information without needing internal batteries which have a finite service life.

M4 Club man specifications.

General

* Microprocessor 32 Bit 33 MHz with
* Time CO Processor
* Quality Standard ISO 9001
* Manufacturing Standard IPC-S-815-A
* Class 3 High Reliability
* Warranty 1 year Parts & Labour
* Burn In -50 to 70°C for 32 Hrs
* ECU Control Software stored in updatable FLASH memory
* High RFI Immunity
* Low heat generation
* Battery transient protection
* Environmentally sealed electronics
* Water proof connector with gold plated contacts
* Case Size 120 x 100 x 36 mm (4.7 x 3.9 x 1.4 inches)
* Weight 0.4 kg (14 oz)
* Cylinders 1,2,3,4,6,8,12
* Engines 2 stroke, 4 stroke, Rotary (1~4), Odd or Even fire
* Maximum RPM >15,000 RPM

Fuel Calibration

* Accuracy 0.00001 seconds
* RPM sites are user programmable
* Load sites are user programmable
* Main Table (3D) 20 RPM sites x 11
* Load sites (220 points)
* Main Table (3D) 40 RPM sites x 21
* Load sites (840 points)
* End of Injection (3D) 20 RPM sites x 6 Load sites
* Overall Trim ±99 %
* Individual Cylinder Trim ±99 %
* Individual Cylinder Tables (3D) 20 RPM sites x 11 Load sites
* Hi / Lo Injector Balance (3D) 20 RPM sites x 11 Load sites
* Hi / Lo End of Injection (3D) 20 RPM sites x 11 Load sites
* User adjustable Eng Temp, Air Temp & MAP compensations
* Two Auxiliary compensations
* Injector Dead Time Compensation Accel Clamp, Decay & Sensitivity
* Deccel Clamp, Decay & Sensitivity Cold Start (5 parameters)

Injection

* 4 group sequential
* User programmable injector current 0.5~12 Amps peak
* Battery Comp to suit any injector

Other Sensors

* Throttle Pos, Manifold Pressure, Engine Temp & Air Temp
* Narrow Band Oxygen
* 2 Auxiliary Sensor inputs
* 2 Digital / Speed Inputs

Ignition Outputs

* Up to 4 Ignition Outputs
* Versatile Ignition Interface allows connection to most OEM ignition systems including:
o Nissan Multi Coil modules
o GM EST DFI systems
o FORD EDIS DFI systems
o Mazda Rotary DFI modules
o Many Others

Data Logging

* Optional Logging memory allows logging of all ECU parameters
* Memory Size 512 KByte
* Logging Rate 1~20 sets / sec
* Logging Time 10 minutes at 5 sets / sec (28 Parameters+Diags)
* PC Software is available for analysis of the logged data

Boost Control Calibration

* Main Table 20 RPM sites
* Main Table (3D) 20 RPM sites x 10 Throttle sites or 10 Gear sites
* Overall Trim
* Engine Temp & Air Temp comps
* One Auxiliary compensation

Trigger Sensors

* Directly compatible with most OEM trigger systems including:
o HALL, Magnetic and Optical types
o Multi Tooth (eg Mazda and Toyota)
o 1 or 2 Missing Teeth (eg Porsche)
o Many other special types, eg. Ford Narrow Tooth, Nissan Optical, Harley Davidson

Ignition Calibration

* Accuracy 0.25 degrees
* RPM sites are user programmable
* Load sites are user programmable
* Main Table (3D) 20 RPM sites x 11 Load sites (220 points)
* Main Table (3D) 40 RPM sites x 21 Load sites (840 points)
* Overall Trim ±99 %
* Individual Cylinder Trim ±99 %
* Individual Cylinder Tables (3D) 20 RPM sites x 11 Load sites
* Rotary Split 20 RPM x 11 Load
* User adjustable Eng Temp, Air Temp & MAP compensations
* Two Auxiliary compensations
* Dwell Time 20 RPM x11 Battery
* Odd fire engine capability Each Top Dead Centre angle may be specified Resolution 0.5 degree

Special Functions

* Traction Control & Launch Control (2 wheel speed sensors) (or 4 sensors using the MoTeC TC Mux)
* Gear Change Ignition Cut Narrow Band Air Fuel Ratio Control
* Over Run Boost Enhancement
* Warning Alarms (Sensor HI / LO)
* Gear Detection
* Ground Speed Limiting
* Dual RPM Limit
* Nitrous Oxide Enrich / Retard
* Air Conditioner Request
* Over Run Fuel Cut
* Sensor Calibration Tables
* RPM Limit Hard or Soft Cut Fuel and / or Ignition Cut

Diagnostics

* Injectors Open Circuit, Short Circuit, Peak Current Not Reached
* Sensors Open & Short circuit Operating Errors RPM Limit Exceeded, Injector Overduty, Over Boost, Low Battery, REF Error etc.

Operating Conditions

* Internal Temp Range -10~85°C
* Ambient Temp -10~70°C (Depending on load & ventilation)
* Operating Voltage 6~22V DC
* Operating Current 0.4 A max Reverse Battery External Fuse

Calibration

* Personal Computer (see PC Requirements)

Telemetry Link

* Optional Telemetry Link allows real time monitoring and data logging

Auxiliary Outputs

* One Fuel Pump output, one Tacho output plus one general purpose output (see functions below)
* Four general purpose outputs (3 shared with ignition outputs)
* The general purpose outputs may be used for:
o Turbo Wastegate Control
o Idle Speed Control
o Fuel Used Pulse
o Tacho Output
o Shift Light (Gear Dependent)
o Driver Warning Alarm
o RPM / Load dependant device
o User Defined Table (20×11) with definable axis parameters
o Slip Warning
o Fuel Pump Relay
o Thermatic Fan
o Air Conditioner Fan or Clutch

M4 Pro specifications

General

* Microprocessor 32 Bit 33 MHz with Time CO Processor
* Quality Standard ISO 9001
* Manufacturing Standard IPC-S-815-A Class 3 High Reliability
* Warranty 1 year Parts & Labour
* Burn In -50 to 70°C for 32 Hrs
* ECU Control Software stored in updatable FLASH memory
* High RFI Immunity
* Low heat generation
* Battery transient protection
* Environmentally sealed electronics
* Water proof connector with gold plated contacts
* Case Size 120 x 100 x 36 mm (4.7 x 3.9 x 1.4 inches)
* Weight 0.4 kg (14 oz)
* Cylinders 1,2,3,4,6,8,12
* Engines 2 stroke, 4 stroke, Rotary (1~4), Odd or Even fire
* Maximum RPM >15,000 RPM

Fuel Calibration

* Accuracy 0.00001 seconds
* All RPM & Load sites are user programmable
* Main Table (3D) 40 RPM sites x 21 Load sites (840 points)
* End of Injection (3D) 20 RPM sites x 6 Load sites
* Overall Trim ±99 %
* Individual Cylinder Trim ±99 %
* Individual Cylinder Tables (3D) 20 RPM sites x 11 Load sites
* Hi / Lo Injector Balance (3D) 20 RPM sites x 11 Load sites
* Hi / Lo End of Injection (3D) 20 RPM sites x 11 Load sites
* Eng Temp & Air Temp comps
* MAP modifier compensation
* Two Auxiliary compensation
* Injector Dead Time Compensation
* Accel Clamp, Decay & Sensitivity
* Deccel Clamp, Decay & Sensitivity
* Cold Start

Injection

* 4 group sequential
* User programmable injector current 0.5~12 Amps peak
* Battery Comp to suit any injector

Boost Control Calibration

* Main Table (3D) 20 RPM sites x 10 Throttle sites or 10 Gear sites
* Overall Trim
* Engine Temp & Air Temp comps
* One Auxiliary compensation

Ignition Outputs

* Up to 4 Ignition Outputs
* One output may drive up to 8 coils using the MoTeC Ignition Expander
* Versatile Ignition Interface allows connection to most OEM ignition systems including:
o Nissan Multi Coil modules
o GM EST DFI systems
o FORD EDIS DFI systems
o Mazda Rotary DFI modules
o Many Others

Ignition Calibration

* Accuracy 0.25 degrees
* All RPM & Load sites are user programmable
* Main Table (3D) 40 RPM sites x 21 Load sites (840 points)
* Overall Trim ±99 %
* Individual Cylinder Trim ±99 %
* Individual Cylinder Tables (3D) 20 RPM sites x 11 Load sites
* Rotary Split 20 RPM x 11 Load
* Eng Temp & Air Temp comps
* MAP compensation
* Two Auxiliary compensations
* Dwell Time 20 RPM x11 Battery
* Odd fire engine capability Each Top Dead Centre angle may be specified Resolution 0.5 degree

Trigger Sensors

* Directly compatible with most OEM trigger systems including :
o HALL, Magnetic and Optical types
o Multi Tooth (eg Mazda and Toyota)
o 1 or 2 Missing Teeth (eg Porsche)
o Many other special types, eg. Ford Narrow Tooth, Nissan Optical, Harley Davidson

Data Logging

* Optional Logging memory allows logging of all ECU parameters
* Memory Size 512 KByte
* Logging Rate 1~20 sets / sec
* Logging Time 38 minutes at 5 sets / sec (28 Parameters+Diags) PC Software is available for analysis of the logged data.

Air Fuel Ratio Sensor

* High accuracy Wide Band Air Fuel Ratio Sensor Input (Optional)
* Range 0.75 to 1.20 Lambda
* Resolution 0.01 Lambda

Other Sensors

* Throttle Pos, Manifold Pressure, Engine Temp & Air Temp
* 2 Auxiliary Sensor inputs
* 2 Digital / Speed Inputs

Special Functions

* Traction Control & Launch Control (2 wheel speed sensors) (or 4 sensors using the MoTeC TC Mux)
* Gear Change Ignition Cut
* Wide Band or Narrow Band Air Fuel Ratio Control (3D mapped)
* Over Run Boost Enhancement
* Warning Alarms (Sensor HI / LO)
* Gear Detection Ground Speed Limiting
* Dual RPM Limit
* Nitrous Oxide Enrich / Retard
* Air Conditioner Request
* Over Run Fuel Cut
* Sensor Calibration Tables RPM Limit Hard or Soft Cut Fuel and / or Ignition Cut

Auxiliary Outputs

* Four general purpose outputs (3 shared with ignition outputs)
* The outputs may be used for :
o Turbo Wastegate Control
o Idle Speed Control
o Fuel Used Pulse
o Tacho Output
o Shift Light (Gear Dependent)
o Driver Warning Alarm
o RPM / Load dependant device
o User Defined Table (20×11) with definable axis parameters
o Slip Warning
o Fuel Pump Relay
o Thermatic Fan
o Air Conditioner Fan or Clutch

Diagnostics

* Injectors Open Circuit, Short Circuit, Peak Current Not Reached
* Sensors Open & Short circuit
* Operating Errors RPM Limit Exceeded, Injector Overduty, Over Boost, Low Battery, REF Error etc.

Operating Conditions

* Internal Temp Range -10~85°C
* Ambient Temp -10~70°C (Depending on load & ventilation)
* Operating Voltage 6~22V DC
* Operating Current 0.4 A max
* Reverse Battery External Fuse

Calibration

* Personal Computer (see PC Requirements)

Telemetry Link

* Optional Telemetry Link allows real time monitoring and data logging